Westermo GDW-11 - Manual (Page 164)

164 V.24-V.25 commands 6615-2220
&C – Set DCD signal
Description:
This commands controls the Data Carrier Detect (DCD) signal.
NOTE:
GDW-xx slightly differ from V25ter Recommendation. DCD signal (“Circuit 109”) is
turned ON at the same time the CONNECT message is sent, whereas the specification
states the DCD should be turned ON after the CONNECT message was received.
Syntax:
AT&C
Parameters:
0: DCD always on
1: DCD matches state of the remote modem’s data carrier
Command example Possible responses Note
AT&C0 OK DCD always on
AT&C1 OK DCD follows the state of
the modem’s data carrier